Putin has [ withdrawn a substantial fraction of troops from near the border with Ukraine ]( http://www.theguardian.com/world/2014/oct/12/vladimir-putin-russian-troops-ukraine-border ) . This could still leave substantial numbers to sneak into Ukraine and attack.
Ссылка: https://stallman.org/archives/2014-jul-oct.html#14_October_2014_%28Putin_has_withdrawn_a_sustantial_fraction_of_troops_from_near_border%29